Pioneered by Lewmar, ELS (Electric Load
Sensing) electric winches are controlled by an
Overload Protection Control Box, which allows
the winch to be operated up to the safe
working load of the specific winch. Once this
load is exceeded, the winch automatically cuts
out. Once the load is reduced to below the
safe working load, the winch can be restarted.

The ELS features the additional safety function
of a Motor Thermal Trip, which ensures that
the motor cuts out in the event of excessive
heat build up.